1. #1

    who knows electronics

    Help i am trying to create a pulse curcuit using a 555 ic and i know very little about resistors and capacitors to create a 40ms pulse i think that the formula
    1.1 x .360 x 100 = 39.6
    may work but i dont realy know if this is possible any help is appeciated..
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  2. #2
    WTE_Galway's Avatar Senior Member
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    Originally Posted by elvive Go to original post
    Help i am trying to create a pulse curcuit using a 555 ic and i know very little about resistors and capacitors to create a 40ms pulse i think that the formula
    1.1 x .360 x 100 = 39.6
    may work but i dont realy know if this is possible any help is appeciated..

    360 ohm and 100 micro farads ? or visa versa ? Either will work.


    Anyway there is a calculator app and circuit diagram at this page here:

    http://home.cogeco.ca/~rpaisley4/LM555.html#2
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